US3505950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incrementing drive for rotary print wheel in on-the-fly printers
Assignee: International Business Machines Corp
•
Filing: 1968-01-15
•
Granted: 1970-04-14
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Expires: 1988-01-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard Roy Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2627807A
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US2898537A
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US2919641A
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US2940386A
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US3049990A
Cited
US3148497A
Cited
US3216348A
Cited
US3312887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |